/**
 * Created by JetBrains PhpStorm.
 * User: taoqili
 * Date: 12-2-20
 * Time: 上午11:19
 * To change this template use File | Settings | File Templates.
 */

(function() {

	var video = {},
		uploadVideoList = [],
		isModifyUploadVideo = false,
		uploadFile;

	window.onload = function() {
		$focus($G("videoUrl"));
		initTabs();
		initVideo();
		initUpload();
	};

	/* 初始化tab标签 */
	function initTabs() {
		var tabs = $G('tabHeads').children;
		for(var i = 0; i < tabs.length; i++) {
			domUtils.on(tabs[i], "click", function(e) {
				var j, bodyId, target = e.target || e.srcElement;
				for(j = 0; j < tabs.length; j++) {
					bodyId = tabs[j].getAttribute('data-content-id');
					if(tabs[j] == target) {
						domUtils.addClass(tabs[j], 'focus');
						domUtils.addClass($G(bodyId), 'focus');
					} else {
						domUtils.removeClasses(tabs[j], 'focus');
						domUtils.removeClasses($G(bodyId), 'focus');
					}
				}
			});
		}
	}

	function initVideo() {
		createAlignButton(["upload_alignment"]);
		addOkListener();

		//编辑视频时初始化相关信息
		(function() {
			var img = editor.selection.getRange().getClosedNode(),
				url;
			if(img && img.className) {
				var hasFakedClass = (img.className == "edui-faked-video"),
					hasUploadClass = img.className.indexOf("edui-upload-video") != -1;
				if(hasFakedClass || hasUploadClass) {
					$G("videoUrl").value = url = img.getAttribute("_url");
					$G("videoWidth").value = img.width;
					$G("videoHeight").value = img.height;
					var align = domUtils.getComputedStyle(img, "float"),
						parentAlign = domUtils.getComputedStyle(img.parentNode, "text-align");
					updateAlignButton(parentAlign === "center" ? "center" : align);
				}
				if(hasUploadClass) {
					isModifyUploadVideo = true;
				}
			}
			createPreviewVideo(url);
		})();
	}

	/**
	 * 监听确认和取消两个按钮事件，用户执行插入或者清空正在播放的视频实例操作
	 */
	function addOkListener() {
		dialog.onok = function() {
			return insertUpload();
		};
		dialog.oncancel = function() {};
	}

	/**
	 * 依据传入的align值更新按钮信息
	 * @param align
	 */
	function updateAlignButton(align) {
		var aligns = $G("videoFloat").children;
		for(var i = 0, ci; ci = aligns[i++];) {
			if(ci.getAttribute("name") == align) {
				if(ci.className != "focus") {
					ci.className = "focus";
				}
			} else {
				if(ci.className == "focus") {
					ci.className = "";
				}
			}
		}
	}

	/**
	 * 找到id下具有focus类的节点并返回该节点下的某个属性
	 * @param id
	 * @param returnProperty
	 */
	function findFocus(id, returnProperty) {
		var tabs = $G(id).children,
			property;
		for(var i = 0, ci; ci = tabs[i++];) {
			if(ci.className == "focus") {
				property = ci.getAttribute(returnProperty);
				break;
			}
		}
		return property;
	}
	
	/**
	 * 创建图片浮动选择按钮
	 * @param ids
	 */
	function createAlignButton(ids) {
		for(var i = 0, ci; ci = ids[i++];) {
			var floatContainer = $G(ci),
				nameMaps = {
					"none": lang['default'],
					"left": lang.floatLeft,
					"right": lang.floatRight,
					"center": lang.block
				};
			for(var j in nameMaps) {
				var div = document.createElement("div");
				div.setAttribute("name", j);
				if(j == "none") div.className = "focus";
				div.style.cssText = "background:url(images/" + j + "_focus.jpg);";
				div.setAttribute("title", nameMaps[j]);
				floatContainer.appendChild(div);
			}
			switchSelect(ci);
		}
	}

	/**
	 * 选择切换
	 * @param selectParentId
	 */
	function switchSelect(selectParentId) {
		var selects = $G(selectParentId).children;
		for(var i = 0, ci; ci = selects[i++];) {
			domUtils.on(ci, "click", function() {
				for(var j = 0, cj; cj = selects[j++];) {
					cj.className = "";
					cj.removeAttribute && cj.removeAttribute("class");
				}
				this.className = "focus";
			})
		}
	}

	/**
	 * 根据url生成视频预览
	 * @param url
	 */
	function createPreviewVideo(url) {
		if(!url) return;

		var conUrl = utils.unhtmlForUrl(url);

		$G("preview").innerHTML = '<div class="previewMsg"><span>' + lang.urlError + '</span></div>' +
			'<embed class="previewVideo" type="application/x-shockwave-flash" pluginspage="http://www.macromedia.com/go/getflashplayer"' +
			' src="' + conUrl + '"' +
			' width="' + 420 + '"' +
			' height="' + 280 + '"' +
			' wmode="transparent" play="true" loop="false" menu="false" allowscriptaccess="never" allowfullscreen="true" >' +
			'</embed>';
	}

	/* 插入上传视频 */
	function insertUpload() {
		var videoObjs = [],
			width = parseInt($G('upload_width').value, 10) || 420,
			height = parseInt($G('upload_height').value, 10) || 280,
			align = findFocus("upload_alignment", "name") || 'none';
		for(var key in uploadVideoList) {
			var file = uploadVideoList[key];
			videoObjs.push({
				url: file.url,
				width: width,
				height: height,
				align: align
			});
		}

		var count = uploadFile.getQueueCount();
		if(count) {
			$('.info', '#queueList').html('<span style="color:red;">' + '还有2个未上传文件'.replace(/[\d]/, count) + '</span>');
			return false;
		} else {
			editor.execCommand('insertvideo', videoObjs, 'upload');
		}
	}

	/*初始化上传标签*/
	function initUpload() {
		uploadFile = new UploadFile('queueList');
	}

	/* 上传附件 */
	function UploadFile(target) {
		this.$wrap = target.constructor == String ? $('#' + target) : $(target);
		this.init();
	}
	UploadFile.prototype = {
		init: function() {
			this.fileList = [];
			this.initContainer();
			this.initUploader();
		},
		initContainer: function() {
			this.$queue = this.$wrap.find('.filelist');
		},
		/* 初始化容器 */
		initUploader: function() {
			var _this = this,
				$ = jQuery, // just in case. Make sure it's not an other libaray.
				$wrap = _this.$wrap,
				// 图片容器
				$queue = $wrap.find('.filelist'),
				// 状态栏，包括进度和控制按钮
				$statusBar = $wrap.find('.statusBar'),
				// 文件总体选择信息。
				$info = $statusBar.find('.info'),
				// 上传按钮
				$upload = $wrap.find('.uploadBtn'),
				// 上传按钮
				$filePickerBtn = $wrap.find('.filePickerBtn'),
				// 上传按钮
				$filePickerBlock = $wrap.find('.filePickerBlock'),
				// 没选择文件之前的内容。
				$placeHolder = $wrap.find('.placeholder'),
				// 总体进度条
				$progress = $statusBar.find('.progress').hide(),
				// 添加的文件数量
				fileCount = 0,
				// 添加的文件总大小
				fileSize = 0,
				// 优化retina, 在retina下这个值是2
				ratio = window.devicePixelRatio || 1,
				// 缩略图大小
				thumbnailWidth = 113 * ratio,
				thumbnailHeight = 113 * ratio,
				// 可能有pedding, ready, uploading, confirm, done.
				state = '',
				// 所有文件的进度信息，key为file id
				percentages = {},
				supportTransition = (function() {
					var s = document.createElement('p').style,
						r = 'transition' in s ||
						'WebkitTransition' in s ||
						'MozTransition' in s ||
						'msTransition' in s ||
						'OTransition' in s;
					s = null;
					return r;
				})(),
				// WebUploader实例
				uploader,
				actionUrl = editor.getActionUrl('simpleupload');


			uploader = _this.uploader = WebUploader.create({
				pick: {
					id: '#filePickerReady',
					label: lang.uploadSelectFile
				},
				swf: '../../third-party/webuploader/Uploader.swf',
				server: actionUrl,
				fileVal: 'simpleupload',
				duplicate: true,
				fileSingleSizeLimit: 10*1024*1024*1024,//10G
				compress: false
			});
			uploader.addButton({
				id: '#filePickerBlock'
			});
			uploader.addButton({
				id: '#filePickerBtn',
				label: lang.uploadAddFile
			});

			setState('pedding');

			// 当有文件添加进来时执行，负责view的创建
			function addFile(file) {
				var $li = $('<li id="' + file.id + '">' +
						'<p class="title">' + file.name + '</p>' +
						'<p class="imgWrap"></p>' +
						'<p class="progress"><span></span></p>' +
						'</li>'),

					$btns = $('<div class="file-panel">' +
						'<span class="cancel">' + lang.uploadDelete + '</span>' +
						'<span class="rotateRight">' + lang.uploadTurnRight + '</span>' +
						'<span class="rotateLeft">' + lang.uploadTurnLeft + '</span></div>').appendTo($li),
					$prgress = $li.find('p.progress span'),
					$wrap = $li.find('p.imgWrap'),
					$info = $('<p class="error"></p>').hide().appendTo($li),

					showError = function(code) {
						switch(code) {
							case 'exceed_size':
								text = lang.errorExceedSize;
								break;
							case 'interrupt':
								text = lang.errorInterrupt;
								break;
							case 'http':
								text = lang.errorHttp;
								break;
							case 'not_allow_type':
								text = lang.errorFileType;
								break;
							default:
								text = lang.errorUploadRetry;
								break;
						}
						$info.text(text).show();
					};

				if(file.getStatus() === 'invalid') {
					showError(file.statusText);
				} else {
					$wrap.text(lang.uploadPreview);
					if('|png|jpg|jpeg|bmp|gif|'.indexOf('|' + file.ext.toLowerCase() + '|') == -1) {
						$wrap.empty().addClass('notimage').append('<i class="file-preview file-type-' + file.ext.toLowerCase() + '"></i>' +
							'<span class="file-title">' + file.name + '</span>');
					} else {
						if(browser.ie && browser.version <= 7) {
							$wrap.text(lang.uploadNoPreview);
						} else {
							uploader.makeThumb(file, function(error, src) {
								if(error || !src || (/^data:/.test(src) && browser.ie && browser.version <= 7)) {
									$wrap.text(lang.uploadNoPreview);
								} else {
									var $img = $('<img src="' + src + '">');
									$wrap.empty().append($img);
									$img.on('error', function() {
										$wrap.text(lang.uploadNoPreview);
									});
								}
							}, thumbnailWidth, thumbnailHeight);
						}
					}
					percentages[file.id] = [file.size, 0];
					file.rotation = 0;
				}

				file.on('statuschange', function(cur, prev) {
					if(prev === 'progress') {
						$prgress.hide().width(0);
					} else if(prev === 'queued') {
						$li.off('mouseenter mouseleave');
						$btns.remove();
					}
					// 成功
					if(cur === 'error' || cur === 'invalid') {
						showError(file.statusText);
						percentages[file.id][1] = 1;
					} else if(cur === 'interrupt') {
						showError('interrupt');
					} else if(cur === 'queued') {
						percentages[file.id][1] = 0;
					} else if(cur === 'progress') {
						$info.hide();
						$prgress.css('display', 'block');
					} else if(cur === 'complete') {}

					$li.removeClass('state-' + prev).addClass('state-' + cur);
				});

				$li.on('mouseenter', function() {
					$btns.stop().animate({
						height: 30
					});
				});
				$li.on('mouseleave', function() {
					$btns.stop().animate({
						height: 0
					});
				});

				$btns.on('click', 'span', function() {
					var index = $(this).index(),
						deg;

					switch(index) {
						case 0:
							uploader.removeFile(file);
							return;
						case 1:
							file.rotation += 90;
							break;
						case 2:
							file.rotation -= 90;
							break;
					}

					if(supportTransition) {
						deg = 'rotate(' + file.rotation + 'deg)';
						$wrap.css({
							'-webkit-transform': deg,
							'-mos-transform': deg,
							'-o-transform': deg,
							'transform': deg
						});
					} else {
						$wrap.css('filter', 'progid:DXImageTransform.Microsoft.BasicImage(rotation=' + (~~((file.rotation / 90) % 4 + 4) % 4) + ')');
					}

				});

				$li.insertBefore($filePickerBlock);
			}

			// 负责view的销毁
			function removeFile(file) {
				var $li = $('#' + file.id);
				delete percentages[file.id];
				updateTotalProgress();
				$li.off().find('.file-panel').off().end().remove();
			}

			function updateTotalProgress() {
				var loaded = 0,
					total = 0,
					spans = $progress.children(),
					percent;

				$.each(percentages, function(k, v) {
					total += v[0];
					loaded += v[0] * v[1];
				});

				percent = total ? loaded / total : 0;

				spans.eq(0).text(Math.round(percent * 100) + '%');
				spans.eq(1).css('width', Math.round(percent * 100) + '%');
				updateStatus();
			}

			function setState(val, files) {

				if(val != state) {

					var stats = uploader.getStats();

					$upload.removeClass('state-' + state);
					$upload.addClass('state-' + val);

					switch(val) {

						/* 未选择文件 */
						case 'pedding':
							$queue.addClass('element-invisible');
							$statusBar.addClass('element-invisible');
							$placeHolder.removeClass('element-invisible');
							$progress.hide();
							$info.hide();
							uploader.refresh();
							break;

							/* 可以开始上传 */
						case 'ready':
							$placeHolder.addClass('element-invisible');
							$queue.removeClass('element-invisible');
							$statusBar.removeClass('element-invisible');
							$progress.hide();
							$info.show();
							$upload.text(lang.uploadStart);
							uploader.refresh();
							break;

							/* 上传中 */
						case 'uploading':
							$progress.show();
							$info.hide();
							$upload.text(lang.uploadPause);
							break;

							/* 暂停上传 */
						case 'paused':
							$progress.show();
							$info.hide();
							$upload.text(lang.uploadContinue);
							break;

						case 'confirm':
							$progress.show();
							$info.hide();
							$upload.text(lang.uploadStart);

							stats = uploader.getStats();
							if(stats.successNum && !stats.uploadFailNum) {
								setState('finish');
								return;
							}
							break;

						case 'finish':
							$progress.hide();
							$info.show();
							if(stats.uploadFailNum) {
								$upload.text(lang.uploadRetry);
							} else {
								$upload.text(lang.uploadStart);
							}
							break;
					}

					state = val;
					updateStatus();

				}

				if(!_this.getQueueCount()) {
					$upload.addClass('disabled')
				} else {
					$upload.removeClass('disabled')
				}

			}

			function updateStatus() {
				var text = '',
					stats;

				if(state === 'ready') {
					text = lang.updateStatusReady.replace('_', fileCount).replace('_KB', WebUploader.formatSize(fileSize));
				} else if(state === 'confirm') {
					stats = uploader.getStats();
					if(stats.uploadFailNum) {
						text = lang.updateStatusConfirm.replace('_', stats.successNum).replace('_', stats.successNum);
					}
				} else {
					stats = uploader.getStats();
					text = lang.updateStatusFinish.replace('_', fileCount).
					replace('_KB', WebUploader.formatSize(fileSize)).
					replace('_', stats.successNum);

					if(stats.uploadFailNum) {
						text += lang.updateStatusError.replace('_', stats.uploadFailNum);
					}
				}

				$info.html(text);
			}

			uploader.on('fileQueued', function(file) {
				fileCount++;
				fileSize += file.size;

				if(fileCount === 1) {
					$placeHolder.addClass('element-invisible');
					$statusBar.show();
				}

				addFile(file);
			});

			uploader.on('fileDequeued', function(file) {
				fileCount--;
				fileSize -= file.size;

				removeFile(file);
				updateTotalProgress();
			});

			uploader.on('filesQueued', function(file) {
				if(!uploader.isInProgress() && (state == 'pedding' || state == 'finish' || state == 'confirm' || state == 'ready')) {
					setState('ready');
				}
				updateTotalProgress();
			});

			uploader.on('all', function(type, files) {
				switch(type) {
					case 'uploadFinished':
						setState('confirm', files);
						break;
					case 'startUpload':
						/* 添加额外的GET参数 */
						var params = utils.serializeParam(editor.queryCommandValue('serverparam')) || '',
							url = utils.formatUrl(actionUrl + (actionUrl.indexOf('?') == -1 ? '?' : '&') + 'encode=utf-8&' + params);
						uploader.option('server', url);
						setState('uploading', files);
						break;
					case 'stopUpload':
						setState('paused', files);
						break;
				}
			});

			uploader.on('uploadBeforeSend', function(file, data, header) {
				//这里可以通过data对象添加POST参数
				header['X_Requested_With'] = 'XMLHttpRequest';
			});

			uploader.on('uploadProgress', function(file, percentage) {
				var $li = $('#' + file.id),
					$percent = $li.find('.progress span');

				$percent.css('width', percentage * 100 + '%');
				percentages[file.id][1] = percentage;
				updateTotalProgress();
			});

			uploader.on('uploadSuccess', function(file, ret) {
				var $file = $('#' + file.id);
				try {
					var responseText = (ret._raw || ret),
						json = utils.str2json(responseText);
					if(json.state == 'SUCCESS') {
						uploadVideoList.push({
							'url': json.url,
							'type': json.type,
							'original': json.original
						});
						$file.append('<span class="success"></span>');
					} else {
						$file.find('.error').text(json.state).show();
					}
				} catch(e) {
					$file.find('.error').text(lang.errorServerUpload).show();
				}
			});

			uploader.on('uploadError', function(file, code) {});
			uploader.on('error', function(code, file) {
				if(code == 'Q_TYPE_DENIED' || code == 'F_EXCEED_SIZE') {
					addFile(file);
				}
			});
			uploader.on('uploadComplete', function(file, ret) {});

			$upload.on('click', function() {
				if($(this).hasClass('disabled')) {
					return false;
				}

				if(state === 'ready') {
					uploader.upload();
				} else if(state === 'paused') {
					uploader.upload();
				} else if(state === 'uploading') {
					uploader.stop();
				}
			});

			$upload.addClass('state-' + state);
			updateTotalProgress();
		},
		getQueueCount: function() {
			var file, i, status, readyFile = 0,
				files = this.uploader.getFiles();
			for(i = 0; file = files[i++];) {
				status = file.getStatus();
				if(status == 'queued' || status == 'uploading' || status == 'progress') readyFile++;
			}
			return readyFile;
		},
		refresh: function() {
			this.uploader.refresh();
		}
	};

})();